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(11) | EP 0 554 230 A2 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Improvements in winding and tying machines |
| (57) Improvements in winding and tying machines, these being intended for the automatic
production of skeins of cordiform materials, these improvements consisting basically
of the incorporation of a second pair of concealable fingers (6), connected rotationally
to the blocks (5) onto which they are assembled on the winding chuck (1) and to a
strip (9) activated by a mechanism of arms on which a cylinder (18) acts to position
the fingers (6) in a vertical position or concealed, in such a way that, for the production
of rolls or skeins of greater diameter, the mechanism can incorporate two pairs of
concealable fingers (25), between which there is a tying mechanism (27), or these
fingers (34) can be fixed in a vertical position. |
[0001] The following invention, as expressed in the opening statement of this descriptive account, consists of improvements to winding and tying machines, by way of which they are capable of producing rolls of cordiform materials, being based on the incorporation of winding fingers on the skein-making chuck in order to obtain rolls of greater diameter.
[0002] So basically, the mechanism consists of the incorporation of a second pair of winding fingers which is activated by a mechanism which, when a winding finger is raised (vertical) ready to form a skein or roll, enables the other finger to remain concealed (horizontal), so that skeins or rolls can be made triangularly, situated between the new fingers in the winding chuck, and the raised finger of the new pair of fingers, the actual tie of the skeins being made by the twisting device or "S" tying mechanism incorporated in the winding chuck.
[0003] The axis of the "S" twister is concentric to the axis of the winding chuck, in such a way that the axis of the "S" twister is fixed to a cogged pinion into which a rack, which is activated by a cylinder, is geared. Thus, when the cylinder piston moves, it makes the rack move, which causes the cogged pinion, and consequently the "S" twister, to rotate. In this way, depending on the path of the cylinder piston, the number of twists made by the "S" twister can be checked.
[0005] In order to be able to make two ties and for the roll to be more securely held, the mechanism can have two different forms of production, one of these consisting of the mechanism incorporating two pairs of winding fingers, in such a way that each pair acts jointly, enabling one pair of fingers to be raised and the other concealed, there being a tying mechanism between each of the pairs of winding fingers which enables the roll's second tie to be made.
[0006] The axis of each of the tying mechanisms incorporated between the pair of concealable winding fingers has a cogged pinion to which a belt is geared which in turn is geared to a pinion of the central tying mechanism axis of the winding chuck in such a way that, since the central tying mechanism axis has movement transmitted to it from the mechanisms which produce this, from this central tying mechanism axis, the movement is transmitted to the axes of the tying mechanisms located between the pair of concealable fingers.
[0007] A second variant in the production of rolls with two ties consists of the incorporation of two pairs of fixed, diametrically positioned fingers, there being a tying mechanism between each pair of fixed fingers, the job of which will be to make the roll's two ties.
[0008] In this event, the axes of both tying mechanisms are activated in a similar way to that described in the above variant, since these axes are equipped with a cogged pinion to which the respective belts are geared which, in turn, are geared to the appropriate pinions of a central axis to the winding chuck, to which the rotating movement is transmitted by the mechanism producing it.
[0009] Likewise, the take-up/distributor of the cordiform material to be wound is made up of a base plate, onto which a second plate is set, which is connected rotationally to a third, oscillating plate, to which a holder-strip of the take-up unit of the material to be wound is attached.
[0010] A carrier fork which is attached to the plate set onto the base plate, has a cylinder between its prongs, the piston of which is connected to a strip which is attached to the oscillating plate at its other end, in such a way that, when the cylinder is activated, the oscillating plate rotates in relation to the axis connecting the plate set onto the base plate.
[0011] The take-up unit attached to the strip connected to the oscillating plate is made up of a cylinder in such a way that the free end of its piston forms a buffer with the countertake -up to fix the material to be wound.
[0012] The countertake-up is made up of a fixed body and a rotating strip, equiped with a wheel at one end, onto which the material to be wound rests, and which forms a buffer with the take-up, while it is topped by a cylindrical extension at its other end, which rests against a switch which activates the mechanism.
[0013] This take-up mechanism is positioned close to the winding finger and its corresponding hold-down clip for the material to be wound, the positioning of same being adjustable by regulating the cylinder's position.
[0014] The transfer mechanism is activated by a cylinder which causes it to move horizontally to remove it from the wire cutting blade-holder, facilitating its being freed and remaining totally free on the transfer mechanism's base, drawn by the magnets there.
[0015] Likewise, the transfer mechanism's movement enables the wire to be transferred to a second clamp whenever two ties are to be made in the wound rolls.
[0016] Moreover, the wire collection clamp of the transfer mechanism has incorporated a series of improvements based on its configuration, as magnets, articulated to its body, the polarity of which is oriented in the same direction, are set inside its arms, in such a way that the free end of each arm is armed crossways with wrought iron, the objective of which is to conduct the magnetic force lines of both magnets and to guide the wire until it is fully formed for insertion into the tying mechanism.
[0017] The clamp's body has guides connected to it, to guide a ram which is held by a spring which is buffered against the clamp's body, this ram being positioned by a wheel which rests against it and which is connected to one of its arms by an extension.
[0018] The lower end of the ram is shaped like a dovetail to allow the two parts to be connected, one on each side, leaving a central section free which will allow adaptation of the wire to the skein or roll, these parts being adjustable to the thickness of the skein.
[0019] There is a winding mechanism on the market consisting of a spool which supplies the wire for tying the skeins and which is attached by clips connected to a trolley moved by a cylinder, the path of which is adjustable to provide the required length of wire to tie the wound skein in question.
[0020] The wire goes though a guide and at the outlet to this, there is an cutting blade orthogonal to it, which is displaced by the action of a cylinder so that the wire is under a magnetized element, situated between the arms of the movable clamp, which will position itself over the wound skein for subsequent tying.
[0021] So, once the wire is cut, the free length to tie the wound skein attached to the magnetized element is moved by the clamp over the wound skein, the clamp moving downwards automatically and its arms positioning the folded wire over the sides of the skein and with the ends between the arms of the piece in an "S" shape which, when it twists, will produce the braiding of the loose ends of the wire, tying the skein.
[0022] In order to wind the required material, one end of this is attached to the winding chuck using a clip which pushes it against a winding finger; the rotation of this winding chuck causes the skein to form between the pair of diametrically opposed winding fingers.
[0023] In order to keep the material to be wound positioned perfectly, it is guided through a take-up guide.
[0024] When the skein is wound and tied, the clamp lifts up, holding the skein by its arms, which open at some point of their path, freeing the skein and leaving the mechanism ready for another cycle as per the above.
[0025] Moreoever, the title claimant of this Patent is also the title holder of Patent 9102674 which describes a winding and tying machine, in which the winding chuck is equipped with a pair of opposing notches in which the winding mechanisms, made up of an "L" shaped strip, are situated, in such a way that one of the prongs stands out from the chuck and the skein is produced between the prongs, the other prong being held by a spring.
[0026] So, the skein is wound between the pair of winding fingers situated in the notches of the winding chuck, and the material to be wound is fixed between one winding finger and the appropriate clip.
[0027] Likewise, the axis of the "S" twister is concentric to the axis of the winding mechanism and a ratchet wheel with as many teeth as the "S" twister has arms is attached to this axis by a stud-bolt.
[0028] A case ring with a strip catch which oscillates in relation to a rotation axis is attached to the winding chuck; is catches the teeth of the ratchet wheel so that, when the axis of the winding chuck rotates, powered by an engine, the case ring turns with it, pulling the trip catch which catches onto one of the teeth of the ratchet wheel.
[0029] In order to allow rolling of cordiform materials, the winding chuck has had new winding fingers incorporated, positioned diametrically to each other and orthogonal to the pair of fingers which the winding chuck already had.
[0030] The new mechanism can be defined by the fact that these winding fingers, defined as a pair, form part of a mechanical system which has the effect that, whilst one of them is raised, i.e. vertical, the other is horizontal (concealed) in relation to the skein production plane, so that the skein is wound between the two basic winding fingers and the raised finger of the new mechanism, the skein taking on a triangular shape.
[0031] The new pair of fingers is attached rotationally to brackets which are connected to the chuck, so that the winding fingers, below their rotation axis, are extended for their rotational connection to the lugs of a plate which rests on the chuck. This plate has a central aperture to enable the twister to operate, and is held at the sides by rolled springs.
[0032] Connection of the winding fingers to the plate is made in such a way that, whilst one finger is in the raised position, the other remains concealed (horizontal).
[0033] Positioning of the connection plate to the winding fingers is made by a mechanism of arms activated by a cylinder.
[0034] So, the activating mechanism from the connection plate to the winding fingers allows free rotation of the winding chuck, and the end position of the chuck is at 180° in relation to its start position.
[0035] The above description is used for making a skein or roll with one single tie to hold it; in the frequent event that rolls of greater diameter are required, it is advisable to have these tied twice, so, instead of one pair of concealable winding fingers, the winding chuck can have two pairs of winding fingers incorporated so that each pair is aligned and opposed and, whilst one pair is raised, the other remains concealed.
[0036] To make the two ties, there is a tying mechanism between each pair of fingers, so that the skein or roll is shaped between the winding fingers incorporated in the notches of the chuck for this purpose, and the pair of raised fingers of the incorporated mechanism.
[0037] The tying mechanisms situated between the new pairs of concealable fingers are related to the central tying mechanism of the winding plate by their axis which has a pinion into which a cogged belt is geared which, in turn, is geared to a pinion of the central tying mechanism axis, which is activated by the mechanism which transmits the rotational movement.
[0038] So, once the skein or roll is made, when the central tying mechanism rotates, it activates the tying mechanisms situated between the pair of concealable fingers, the tying mechanism between the raised fingers making the tie, this being the one incorporating the tying wire and which, together with the central tying mechanism, which can also supply wire, makes the two ties.
[0039] A second production variant consits of the incorporation of two pairs of fixed winding fingers, the skein or roll being made between them and the adjustable fingers of the winding chuck, situated in the notches of the chuck for this purpose.
[0040] In this event, a tying mechanism is incorporated between the two pairs of fixed, raised fingers. The axis of this mechanism is related to a central axis, which has no tying mechanism, to which the movement is transmitted. The movement from this axis is then transmitted to the axis of the two tying mechainsms situated between the incorporated two pairs of fingers by way of cogged belts which are geared to corresponding pinions of the central axis and of the axes of the lateral tying mechanisms.
[0041] To activate the twister, its axis is attached to a cogged pinion which is geared to a rack which, in turn, is controlled by a cylinder, in such a way that, depending on the length of the cylinder piston's path, the number of turns the twister makes can be adjusted for tying of the skeins. The rack is guided by a bearing for perfect centring.
[0042] Likewise, the body of the twister has a pair of lugs positioned facing the wrong way and this body is connected to the axis of the winding chuck.
[0043] To make the feed of the tying wire easy, the body of the twister has rounded, polished inlets.
[0044] The take-up which distributes the cordiform material to be wound is made up of a base plate on which a second plate sits, to which an oscillating plate is connected rotationally, which is attached to a strip on which the take-up and its corresponding countertake-up rest.
[0045] A fork is connected to the plate resting on the base plate; a cylinder is attached between its prongs, the piston of which is connected to a strip which is connected to the oscillating plate at its other end so that, when the cylinder is activated, it causes the oscillating plate to swing, causing the take-up to rise and the material to be taken to different heights for winding.
[0046] The take-up is made up of a cylinder, the piston of which faces the countertake-up, which is made up of a fixed body and a rotating strip equipped at one end with a wheel which assists the material for winding to glide through, and at the other end, it is topped with a cylindrical body which buffers against a switch to start the mecahnism up.
[0047] So, the take-up is adjustable to allow it to be brought closer to the winding finger and to the attachment clip for the material to be wound, enabling the free strands of the sklein to be kept short.
[0048] In order to make the transfer of the wire from the transfer mechanism to the clamps easier, the transfer mechanism is activated by a cylinder which causes it to be separated from the cutting blade brackets, leaving the wire completely free to assist its handling, as otherwise it could be stuck to the blades by a barb resulting from the cutting and its elevation would not be perfect.
[0049] In this way, once the wire has been cut to the correct length and has been positioned on the upper base of the transfer mechanism, drawn by the magnets, the transfer mechanism is removed so that the wire can be raised freely.
[0050] Furthermore, since the movement of the transfer mechanism can be adjustable, this allows it to be used when two ties are required for one roll, so as to be able to supply the wire to two different clamps.
[0051] Likewise, in order to make the wire transfer by the clamp easier, the clamp has, inside its arms articulated to its body, a pair of magnets with their polarity oriented in the same direction.
[0052] The free end of each arm of the clamp, in a crosswise position, is armed with wrought iron, to conduct the lines of magnetic force from both magnets and to guide the wire until it is fully formed to be placed correctly between the arms of the tying mechanism.
[0053] This arming at the ends of the arms can be changed easily for others of differing width, they being held between the arms ends by the arms' elastic force and anchored by spindles.
[0054] The arming of the arm ends has a symmetrical reduction in its section to situate the wire in this spot since, as there is greater saturation of magnetic force lines in this part of the section, the wire is drawn to it.
[0055] The guides of a ram are connected to the body of the clamp. This ram can glide vertically over the guides and is held by a spring which puts pressure on the body of the clamp, keeping it stable against a wheel which is buffered against one plane of the ram, this wheel being held by an extension of one of the arms.
[0056] The ram ends below in a dovetail for adjustment of a pair of adjustable clamps to allow the positioning most suitable for the width of the skein.
[0057] Since the free ends of the clamp arms are below the ram and are magnetic, they can supply the wire instead of the ram, thus regulating the opening of the clamp.
[0058] In order to complement the description which follows and in order to assist greater understanding of its characteristics, a set of plans is included in this descriptive account, in the figures of which the invention's most significant details are represented, in an illustrative and nonlimiting manner.
[0059] Figure 1 gives an in-plant view of the winding chuck, in which the pair of fingers with their anchorage clips to the cable, together with the concealable pair of fingers, can be observed.
[0060] Figure 2 gives an in-plant view of the winding chuck, in which it can be seen how a triangular shaped skein is being formed, the chuck having rotated and the skein being formed between the two vertical fingers of the chuck, and the concealable finger positioned vertically.
[0061] Figure 3 shows a view through a cross-section of the axis I-I of the above figure, in which it can be observed how one of the concealable fingers is horizontal and the second is vertical to make the triangular shaped skein.
[0062] Figure 4 shows a view through a diametrical cross-section of the winding chuck, with the concealable fingers connected to each other by a strip and the mechanism which enables one or other concealable finger to be vertical to make the skein.
[0063] Figure 5 gives an in-plant view of the winding chuck, in which the connection strip for the concealable fingers, equipped with a central aperture for the tying mechanism or twister to pass through, can be observed, together with the mechanism allowing one or other concealable finger to be positioned vertically.
[0064] Figure 6 gives an in-plant view of a winding chuck, as per a production variant including two pairs of conceal able winding fingers, with a tying mechanism between each pair of conceal able winding fingers.
[0065] Figure 7 shows a cross-section of a diametric axis from the above figure, in which observation can be made of how the central tying mechanism axis of the chuck connects to the tying mechanism axes, situated between the pairs of concealable winding fingers.
[0066] Figure 8 gives an in-plant view of a winding chuck, as per a second production variant in which the fingers of the two pairs of winding fingers incorporated are always vertical; between them are the tying mechanisms to make two ties in the skeins.
[0067] Figure 9 shows a cross-section of an axis diametrical to the above figure, in which observation can be made of the two axes of the tying mechanisms positioned between the incorporated pairs of winding fingers, which are always vertical.
[0068] Figure 10 shows a cross-section of a vertical plane of the twister or tying mechanism, in which its axis for transmission of movement via a cylinder can be seen.
[0069] Figure 11 shows an overhead view of the twister, in which the pair of lugs for improved guidance of the tying wire can be observed.
[0070] Figure 12 gives an in-plant view of the action of the cylinder on the axis of the twister, as per axis II-II in figure 10.
[0071] Figure 13 gives an in-plant view of the twister or tying mechanism in which its lugs can be seen.
[0074] Figure 16 shows a cross-section of the way the fastening fork for the cylinder is connected to the base plate of the tying wire take-up/distributor.
[0075] Figure 17 shows a close-up of how the oscillating plate moves to bring the cable to different heights for even distribution when making the skein.
[0076] Figure 18 shows a close-up of how the buffer pad of the take-up acts on the cable, and the buffer body of the contertake-up, together with the anchorage of the cable by the winding finger clip.
[0077] Figure 19 shows a close-up of the component mechanism of the countertake-up, observing the different components of which it consists.
[0078] Figure 20 shows a close-up of the countertake-up, on its rest plate, in which the different components of which it consists can be observed.
[0079] Figure 21 shows the transfer mechanism with the brackets onto which the cutting blades are attached for the wire which is to be supplied for tying the skeins.
[0080] Figure 22 shows the clamp for transporting the wire from the transfer mechanism to the chuck; observation can be made of the two arms of the clamp "open".
[0082] Figure 24 shows the clamp for transporting the wire from the transfer mechanism to the chuck; observation can be made of the configuration of its arms.
[0084] In the light of the annotated figures and in accordance with the numbering used, we can observe how winding chuck 1 is equiped with the blocks 2 with the winding fingers 3 and the anchorage clips 4 of the cable 7, positioned in its notches 24 to graduate their positioning in same; and a pair of blocks 5 are incorporated, with their corresponding fingers 6, to the above winding chuck 1, in such a way that these fingers 6 are activated by a mechaism which enables them to be concealed in relation to the skein production plane, one of them remaining vertical and the other concealed horizontally, enabling skeins to be made triangularly with one tie made by the central tying mechanism 8 of the chuck.
[0085] The pair of concealable winding fingers 6 face each other, and are orthogonal to the fingers 3 of chuck 1.
[0086] The pair of fingers 6 are attached rotationally by axis 12 to block 5 connected to chuck 1, by screws 21, in such a way that these winding fingers 6 extend with respect to axis 12, being attached rotationally by axis 11 to a strip 9 connecting both, via lugs 10, this strip 9 having a central aperture to allow the central tying mechanism 8 of the chuck 1 to pass through.
[0088] Connection of the concealable winding fingers 6 to strip 9 is made so that, whilst one finger is vertical, the other finger is horizontal, concealed in relation to the skein production plane.
[0089] The position of strip 9, in order that either one or the other finger 6 is raised, is achieved by a mechanism consisting of an axis 22, equipped at one end with a roller 14, which can come to rest on one end of strip 9, while its other end joins an arm 15, which connects it with the rotation axis 23 to arm 16 which, in turn, connects with piston 17 of cylinder 18 which, at the other end 19, connects rotanionally to bracket 20.
[0090] So, when cylinder 18 is activated, roller 14 pushes against strip 9, causing it to move to its opposite position, causing the raised finger 6 to become horizontal and the other, concealed finger 6 to rise up to vertical.
[0091] When cylinder 18 returns to its starting position, roller 14 remains above strip 9, in relation to its top, allowing chuck 1 to rotate. When the cycle ends, cylinder 18 is activated again, so that roller 15 acts on strip 9, as it has been positioned for this purpose, causing the raised finger 6 to be concealed, thus facilitating removal of the skein produced.
[0092] This description acts to produce the skein or roll with one single tie to stop it unravelling, but it is often desirable to produce rolls of greater diameter and in this case, it is advisable for it to be fastened with two ties, so that the winding chuck, instead of a pair of concealable winding fingers 6, can have two pairs of winding fingers 25 incorporated so that each pair is aligned and opposed and, whilst one pair is raised, the other remains concealed.
[0093] To make the two ties, there is a tying mechanism 27 between each pair of fingers 25, connected by strip 26, so that the skein or roll is formed between the winding fingers 3 which the chuck has incorporated in its notches for this purpose and the pair fo fingers 25, positioned vertically.
[0094] The tying mechanisms 27 situated between the pairs of concealable fingers 25, are related to the axis 31 of the central tying mechanism 8 of the winding chuck 1 by their axis 29 having a pinion 30 into which respective cogged belts 33 are geared which, in turn, are geared to the corresponding pinions 32, connected to axis 31 of the central tying mechanism 8, which is activated by the mechanism which transmits the rotational movement.
[0095] Axes 31 and 29 of the central tying mechanism 8 and of the tying mechanisms 27 respectively are guided by the bearings 28 which allow their rotational movement at the same time.
[0096] So, once the skein or roll has been made, when the central tying mechanism 8 rotates, it activates the tying mechanism 27, situated between the pair of concealable fingers 25, the tying mechanism 27, situated between the raised fingers 25, making the tie, being the one equipped with the tying wire. Together with the central tying mechanism 8, which is also equipped with wire, the two ties are made in the skein.
[0097] A second production variant consists of the incorporation of two pairs of fixed winding fingers 34, set onto a base 35, the skein or roll is made between them and the adjustable fingers 3 of winding chuck 1, which are situated in notches 24 of the chuck, designed for this purpose.
[0098] In this event, between the two pairs of fixed, raised fingers 34 there is a tying mechanism 27, the axis 29 of which is related to a central axis 31, which has no tying mechanism, to which the movement is transmitted. This movement is then transmitted from this axis 31 to axis 29 of the two tying mechanisms 27, located between the two pairs of fingers 34, via cogged belts 33 which are geared to corresponding pinions 32 of the central axis 31, respective pinions 30 of axes 29 of each of the tying mechanism 27.
[0099] To activate the twister or tying mechanism 8, its axis 31 is attached to a cogged pinion 36 which is geared onto a rack 37, connected to the piston of a cylinder 38, which connects rotationally to bracket 40 by way of axis 39.
[0100] The twister or tying mechanism 8 is concentric to its body 41, which has a pair of lugs or lapels 42, positioned facing the wrong way with respect to each other and the axis of the twister is guided by a bushing 43, so that this body 41 of the twister has been connected to axis 44 of the winging chuck.
[0101] The above body 41 has rounded, polished inlets 46 on each side, where the tying wire 45 has to go in to be twisted, to make the wire 45 glide more smoothly, while the lugs 42 prevent the wire from slipping towards the edge.
[0102] Axis 31 of the twister or tying mechanism 8 goes into a cogged pinion 36, in which there is a concentric housing 47 for this purpose, this pinion 36 having extensions or rests 48 through which it glides whilst rotating and movement is transmitted to axis 31 via stud-bolt 49.
[0103] The cogged pinion 36 is geared to the rack 37 and the resulting working stress of both is absorbed by the bearing 50 which is fastened by bolt 51 to base 52 which, together with plate 53, guide the entire mechanism described.
[0104] When cylinder 38 is idle, twister 8 and its body 41 are in position a-b in relation to the tying wire 45 (figure 13), to bring the wire 45 closer to the centre of the twister, as in position c-d (figure 13), it would not be allowed in for twisting.
[0105] When the wire 45 has taken up position a-b in the tying mechanism, cylinder 38 moves a specific distance and turns the twister a certain number of times. In this way, the number of times the twister rotates can be controlled simply and reliably.
[0106] The take-up distributor of the cordiform material to be wound is formed by a base plate 54 on which a second plate 55 sits, to which an oscillating plate 57 is connected by axis 56. This oscillating plate is attached to a strip 58 by a dovetailed system 67 or similar sliding mechanism. The take-up 59 and its corresponding countertake-up 60 rest on this strip, the take-up 59 being activated by a cylinder 68.
[0107] A fork 61 is connected to plate 55 which rests on base plate 54. Rotationally in relation to axis 69, a cylinder 62 is attached between the prongs of this fork, its piston ending in a fork-shaped body 63 which is connected to a strip 64 which, at the opposite end, connects with oscillating plate 57, so that, when cylinder 62 is activated, it causes the oscillating plate 57 to swing, causing the take-up 59 to rise and enabling the material to be brought to different heights for winding.
[0108] The fork 61 also acts as a guide for plate 55 in its movement through the slider of plate 54 and to keep it attached to it via screw 65. Plate 55's and plate 58's movements cause the displacement of the take-up 59 in the X-X' and the Y-Y' axes, to bring the take-up 59 and the countertake-up 60 as close as possible to the block 2 of the winding finger 3 in chuck 1. The width of oscillation is accomplished by adjusting the nuts 66.
[0109] The take-up itself is made up of a cylinder 68, the piston of which, ending in a friction pad 59 against cable 7, faces the countertake-up, which consists of a body 60 in which a lever 70 is housed, which pivots in axis 71 and is kept in a stable position by a spring 72, there being a roller 73 at the outer end of the lever 70, for the cable 7 to be wound to slide through. At the other end of the lever 70, there is a cylindrical extension 74 which rests against the button of a switch 75, housed in a box, for the countertake-up, which is closed with the appropriate lid.
[0110] The main function of the take-up is to keep the cable to be processed at a constant tension, and to trip the cable fastening system, both of the take-up itself and the clip 4 of block 2 of the winding finger. A third function is to bring the take-up as close as possible to the winding finger, to leave the shortest possible loose stand of cable.
[0111] When the operator inserts the cable 7 between the winding finger 3 and the clip 4, at the same time he inserts this cable between the pad 59 of the take-up and the countertake-up 60 and, the roller 73 pressing against this cable, the switch 75 is activated so that, when the machine receives the electrical, or otherwise, signal the clip 4 of the block 2 and the take-up activated by the cylinder 68 close instantly, leaving the cable 7 held fast and ready to be wound.
[0112] So, with the cable 7 held fast by the clip 4 and the take-up/countertake-up, the winding chuck starts to rotates and the skein to form.
[0113] In order for the winding cable to be spread evenly along the winding finger 3, the cylinder 62 will transmit its movement, with the speed duly adjusted, to the oscillating lever 57 and consequently to the plate 58, thus to the take-up/countertake-up unit working at the end of it.
[0114] The cylinder 62 has the synchronism required with the winding chuck to make the changes for each program, the oscillation of the plates 57-58 is controlled by the path of the cylinder 62 which is limited by adjustment of the nuts 66.
[0115] The transfer mechanism 76 aids the vertical movement of the wire 45 over the base 86 and uses the wider, horizontal movement to transfer the wire 45 to a second clamp when two ties are required.
[0116] The bracket 78 of the fixed blade 79 has been connected up to the guide 77 of the wire 45 doser. The cylinder 80, which impells the cutting of the wire, is connected to the guide 77 as the cylinder's piston is attached to bracket 81 of the moveable blade 82.
[0117] The cylinder 83 of the transfer mechanism 76 is also connected to the guide 77 as regards the cutting blades, the wire deposit base 86 of which has been connected up to the piston of the cylinder 84 which raises it, so that this cylinder 84 can slide, being mounted on a bearing 85, through the guide 77, being impelled by cylinder 83.
[0118] So, once the wire 45 has been cut by the blades 79-82, the cut piece is drawn by the magnets 87, located on the transfer mechanism's base 86; the end of the piece of cut wire is in a vertical line "a". When the separating cylinder 83 is activated, cylinder 84 moves along the guide 77 and the end of the cut wire will take up the vertical line position "b", avoiding incorrect delivery of the wire from the transfer mechanism to the clamp, by the wire not being completely free from any barbs, which would prevent a totally free elevation of the wire.
[0119] In this way, once the wire has been cut to the correct length and positioned on the upper base 86 of the transfer mechanism, drawn by the magnets 87, the transfer mechanism is moved away so that the wire can be elevated freely.
[0120] Likewise, as the transfer mechanism's movement is adjustable, it can be used when two ties are required in the roll or skein and can therefore supply the wire to two different clamps.
[0121] The arms 89 of the clamp of non-magnetizable material in the body of the clamp 88 of magnetizable material can oscillate in their axes 90. The guides 91 of the ram 92 are connected to this body 88, the ram being able to slide vertically along them with the bearings 93.
[0122] This ram 92 is impelled by a spring 94 which, opposing the body 88, keeps is stable against the wheel 95 along the plane 96 which, held by the extension 97, is connected to one of the clamp's arms.
[0123] Inside each of the arms 89, two magnetic bars or magnets 98 are fastened, with their polarity oriented in the same direction
[0124] At the foot of each clamp arm, is the wrought iron arming 99, which has the task of conducting the magnetic force lines from both magnets 98 and to guide the wire 45 until it is fully formed for insertion into the tying mechanism.
[0125] This arming 99 can be changed with ease for others of a different width, as it is held between the arm ends by their elastic force and attached by spindles 100 in the apertures 101.
[0126] The arming 99 has a symmetrical reduction 102 in its section, to centre the wire 45 onto this point since, there being the greatest saturation of magnetic force lines in this part of the section, the wire is drawn towards it.
[0127] The magnets 98 of each arm are oriented with their polarity in the same direction but opposing from one arm to the other, and the polarity of one arming in relation to the other, so that the clamp itself becomes a great horseshoeshaped magnet, the magnetic circuit being closed by the gaps 106, with the body 88, because of its appropriate shape to allow movement of the arms, maintaining this gap.
[0128] The ram 92 has a dovetail or similar shape at its lower edge for sliding and attachment 103, onto which components 104 are fitted, which have the task of pre-shaping the wire 45 against the cable 7 which is to be processed.
[0129] These components 104 have a crossways screw 105 to attach them in the position most appropriate to the width of the skein to be produced, thereby adjusting the width of box A.
[0130] Because the lower ends of the clamp are those which jut out the most and are most magnetic, the ram does not need to be magnetized so you can work with a clamp wider open or tighter closed without the ram having to be removed, as it is always above the arming and cannot come into contact with it.
[0131] In this event, the wheel 95 acts solely to limit the downward path of the ram and not to lift it, as this will be done by the cable to be tied.
1. Improvements in winding and tying machines, these machines being intended for automatic
skein-making of materials such as cable or similar and the tying of them, essentially
characterized by the fact that, into the winding chuck (1) which is equipped with
a pair of winding fingers (3), a second pair of fingers (6) has been incorporated,
diametrically opposed, rotationally connected to corresponding blocks (5) attached
to the chuck (1) and which, in turn, are connected rotationally to a strip (9), with
a central aperture to allow the twister (8) to operate, this strip being held at its
edges by rolled springs (13) so that the connection of the fingers (6) to the strip
(9) is made in such a way that when one is vertical, the other is concealed horizontally
in relation to the skein production plane, the design being such that the strip (9)
connecting the winding fingers (6) is controlled by a mechanism of arms activated
by a cylinder (18) which enables them to be positioned in one of two positions, one
or the other finger being raised whilst the other is concealed, with the singularity
that the twister (8) is activated by a cylinder (38), the axis (31) of this twister
(8) being fixed in an "S" to a cogged pinion with a rack (37) activated by this cylinder
(38) and which, depending on the path of the piston, enables the number of turns of
the tie to be adjusted.
2. Improvements in winding and tying machines, as per claim 1, characterized by the fact
that, for production of rolls of larger diameter in the winding chuck (1), a mechanism
is incorporated with two pairs of winding fingers (25), each pair of fingers (25)
being concealable and having a tying mechanism (27) between them, the design being
such that the movement is transmitted to each tying mechanism (27) through their axis
(29) having a pinion (30) into which a belt (33) is geared which, in turn, is geared
to the respective pinions (32) of the axis (31) of the central tying mechanism (8)
to which the movement is transmitted.
3. Improvements in winding and tying machines, as per claim 1, characterized by the fact
that the winding chuck has two pairs of fixed, raised fingers (34) incorporated, the
skein or roll being made between this pair of fixed fingers (34) and the adjustable
fingers (3) of the winding chuck (1), the design being such that, between each pair
of fixed or raised fingers (34), there is a tying mechanism (27), to the axis (29)
of which, equipped with a pinion (30), movement is transmitted by a cogged belt (33)
which, in turn, is geared to a pinion (32) of the central axis (31) which does not
have a tying mechanism, to the winding chuck to which the movement is transmitted.
4. Improvements in winding and tying machines, as per claim 1, characterized by the fact
that the mechanism which supplies and tenses the material to be wound is made up of
a base plate (54), on which a second plate (55) sits, to which a fork (61) is attached,
between the prongs of which a cylinder (62) is installed, in such a way that the piston
of this cylinder is attached to a strip (64) which, in turn,is connected to an oscillating
plate (57), connected rotationally to the plate (55) sitting on the base plate (54),
this oscillating plate (57) being connected to a strip (58) onto which the take-up
and countertake-up are installed, the take-up being made up of a cylindere (68); the
piston, ending in a pad (59), is buffered against the countertake-up, while the countertake-up
(60) is made up of a fixed block and a rotating strip (70), one end of which rests
against a wheel (73) for the material (7) to be wound to slide over; at the other
end it rests against a cylindrical body (74) which acts on a switch (75) which starts
the mechanism up, the design being such that the mechanism is adjustable so that the
take-up stays close to the finger (3) which attaches the material (7) to be wound
onto its corresponding clip (4).
5. Improvements in winding and tying machines, as per claim 1, characterized by the fact
that the transfer mechanism (76), moved by a guide (77), is activated by a cylinder
(83), the movement of which is adjustable to enable the wire to be supplied to two
clamps for the roll to be tied in two places.
6. Improvements in winding and tying machines, as per claim 1, characterized by the fact
that the clamp (88) supplying the wire (45) to the tying mechanism is equipped inside
its arms (89) with a pair of magnets (98) with their polarity oriented in the same
direction, there being magnetized arming (99) on the free end of the arms to transfer
the wire to the twister (8), in such a way that this arming (99) of the arm ends can
be changed for another of a different width, the design being such that the body of
the clamp has guides (91) for the ram (92), which is held by a spring (94) and has
its free end dovetailed (103), onto which two adjustable components (104) are fixed,
thus enabling them to be positioned in accordance with the width of the skein or roll
to be produced.